Lt. Tuck Pendleton
Dennis Quaid
Jack Putter
Martin Short
Dr. Greenbush
William Schallert
Mr. Wormwood
Henry Gibson
Ozzie Wexler
John Hora
Dr. Niles
Mark L. Taylor
Lydia's Editor
Orson Bean
Duane
Kevin Hooks
Dream Lady
Kathleen Freeman
Messenger
Archie Hahn
Man in Restroom
Kenneth Tobey
Waiting Room Patient
Joe Flaherty
Lydia Maxwell
Meg Ryan
Andrea Martin
Scrimshaw's Henchman
Jason Laskay
Frank Miller
Lab Technician
Christine Avila
Alexandra Borrie
Jenny Gago
Robert Gounley
Rusty
Grainger Hines
Cop
Mike Garibaldi
Richard McGonagle
Victor Eugene Scrimshaw
Kevin McCarthy
Travel Agent
Terence McGovern
Lab Guard
Robert Neches
Supermarket Customer
Rance Howard
Chuck Jones
Laura Waterbury
Lab Assault Henchman
Kurt Braunreiter
Brewster Sears
Man with Camera
Alan Blumenfeld
Lydia's Interviewee
Jeffrey Boam
Stewardess
Sydne Squire
Dr. Margaret Canker
Fiona Lewis
Man on Plane
Paul Barselou
Man in Elevator
John Miranda
Little Kid in Mall
Jordan Benjamin
Chef
Roberto Ramirez
Shopping Lady
Virginia Boyle
Camera Store Clerk
Herb Mitchell
Pod Computer (voice)
Neil Ross
Robert Gray
Wendell
Shawn Nelson
Vectorscope Employee (uncredited)
Joe Dante
Mr. Igoe
Vernon Wells
The Cowboy
Robert Picardo
Cab Driver
Dick Miller
Wendy
Wendy Schaal
Pete Blanchard
Harold Sylvester
Screenplay
Stunts
Dick Warlock
Original Music Composer
Jerry Goldsmith
Executive Producer
Steven Spielberg
Sound Editor
Wayne Allwine
Jon Peters
Gaffer
James Plannette
Supervising Sound Editor
Mark Mangini
Casting
Mike Fenton
Co-Executive Producer
Kathleen Kennedy
Costume Design
Rosanna Norton
Frank Marshall
Producer
Michael Finnell
Songs
Rod Stewart
Corey Michael Eubanks
Title Designer
David Oliver Pfeil
Visual Effects Supervisor
Dennis Muren
Director
Additional Editor
Mark Goldblatt
Al Wyatt Sr.
Peter Guber
Stunt Double
Steven Lambert
Chip Proser
Special Effects
Pete Kozachik
Mike Johnson
Makeup Effects Designer
Rob Bottin
Cindy Wills
Simone Boisseree
Special Effects Supervisor
Michael Wood
Director of Photography
Andrew Laszlo
Stunt Coordinator
Glenn Randall Jr.
Set Designer
Gene Nollman
Makeup Artist
John Rizzo
Second Assistant Director
Carol Green
Sound Re-Recording Mixer
Elliot Tyson
Key Grip
Ray Kinzer
Wayne Fitzgerald
Color Timer
Terry Hager
Judy Cammer
Set Decoration
Richard C. Goddard
Script Supervisor
Anne Warner
Warren Hamilton Jr.
Stephen Abrums
Teresa Eckton
Hairstylist
Joy Zapata
First Assistant Director
Pat Kehoe
Boom Operator
Douglas Vaughan
Barbara Lorenz
Story
Unit Production Manager
John C. Broderick
Production Sound Mixer
Ken King
Jane Feinberg
Judy Taylor
Co-Producer
John Pospisil
James Matheny
Editor
Kent Beyda
Production Design
James H. Spencer
Music Editor
Kenneth Hall
Property Master
Craig Raiche
Art Direction
William F. Matthews
Robert J. Litt
Steve Maslow
Construction Coordinator
Michael Muscarella